Three-dimensional simulation analysis of a 3 cm wavelength free-electron laser afterburner

Author

Wang, Changbiao

Author_Institution

Res. Inst. of High Energy Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

22

Issue

5

fYear

1994

fDate

10/1/1994 12:00:00 AM

Firstpage

649

Lastpage

653

Abstract

We have simulated a 3 cm wavelength free-electron laser afterburner (FEL Afterburner) using two sets of parameters: one is for a 3-cm period wiggler and the other is for a 5.4 cm period wiggler. For the 3 cm period wiggler, the input beam energy is 112.5 keV, and for the 5.3 cm period wiggler the beam energy is increased to 290 keV to make the FEL Afterburner operate at the same frequency. It is found, from the simulations, that the FEL Afterburner with a longer period wiggler has a higher power conversion efficiency: larger than 16% $ for the 5.4 cm wiggler while only about 9% for the 3 cm wiggler. It is also shown that to enhance the interaction efficiency in the slow wave cavity, the slow wave number should be a little larger than the sum of the fast wave number and the wiggler wave number

Keywords

digital simulation; free electron lasers; laser accessories; physics computing; wigglers; 112.5 keV; 16 percent; 290 keV; 3 cm; 3D; 5.4 cm; 9 percent; input beam energy; simulation analysis; wiggler; Analytical models; Electron beams; Free electron lasers; Frequency; Incineration; Laser beams; Laser theory; Nuclear electronics; Power conversion; Undulators;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.338278

Filename

338278